622-44-6Relevant articles and documents
Synthesis and antimicrobial activity of 3-aryl-2,6-diphenylimino-4-S-hcpta- O-benzoyl-lactosyl-2,3-dihydro-1,3,5-thiadiazine hydrochlorides
Deshmukh, Reena J.,Deshmukh, Shirish P.
, p. 1027 - 1031 (2013/09/23)
A new series 3-aryl-2,6-diphenylimino-4-S-hepta-O-benzoyl-lactosyl-2,3- dihydro-1,3,5-thiadiazine hydrochlorides have been synthesized by the interaction of S-hepta-O-benzoyl-lactosyl-1,5-disubstituted-2,4-isodithiobiurets and phenyl isocyanodichloride. The newly synthesized compounds have been characterised by analytical and IR, 1H NMR and Mass spectral studies. These newly synthesized thiolactosides are also tested for antibacterial and antifungal activity.
Synthesis and antimicrobial activity of 2-phenylimino-3-aryl-4-S-benzyl-6- hepta-O-benzoyl-β-D-lactosylimino-2,3-dihydro-1,3,5-thiadiazine hydrochlorides
Agrawal,Deshmukh
experimental part, p. 1259 - 1262 (2011/12/15)
Several N-lactosylated-1,3,5-thiadiazine hydrochlorides have been prepared by the interaction of 1-aryl-5-hepta-O-benzoyl-β-D-lactosyl-2-S-benzyl-2,4- isodithiobiurets and phenyl isocyanodichloride. The structure of these new N-lactosylated-1,3,5-thiadiazines have been established on the basis of usual chemical transformations and IR, NMR and Mass spectral analysis. Antimicrobial activities of these compounds were evaluated.
Lifetimes of imidinium ions in aqueous solution
Dalby, Kevin N.,Jencks, William P.
, p. 7271 - 7280 (2007/10/03)
Imidinium ions, ArN=CNR2+, were generated in aqueous solution from the solvolysis of fluoro and chloro formamidines at pH 9.3 and 25°C. Rate constants for the hydration of five imidinium ions were determined from a kinetic analysis of their trapping by thiolacetate anion, CH3COS-, in the presence of a pool of competing fluoride anion, and a rate constant of k(AcS)- = 5 x 109 M-1 S-1 for diffusion-controlled trapping of the carbocations with thiolacetate anion. The rate constants, k(s), for hydration of the imidinium ions, XArN=CNC4H8O+ are 3.6 x 105, 5.8 x 105, 1.5 x 106, 1.6 x 106, and 1.8 x 106 s-1 for X = H, 4-Cl, 3-CN, 4-CN, and 3-NO2, respectively. In a similar experiment a rate constant of k(s) = 3.3 x 107 s-1 was obtained for hydration of the imidinium ion 4-NO2-ArN=CNCH3(OCH3)+, by using azide anion to trap the cation and a rate constant of k(az) = 5 x 109 M-1 s-1 for diffusion-controlled trapping of the imidinium ion with azide ion. The partitioning rate constant ratio k(AcS)-/k(s) for 4-ClArN=CNC4H8O+ decreases by approximately 6-fold in 45% v/v glycerol/water in contrast to k(az)/k(s), which remains almost constant, showing that thiolacetate, but not azide anion, combines with the imidinium ion at a diffusion-limited rate. The reactivity of the imidinium ions deviate from behavior predicted by the N+ scale in a manner that may be explained by a difference in the selectivity of the cation when compared to the more stable N+ carbocations.
Improved preparation of 5-chloro-1-phenyl-1H-tetrazole and other 5- chlorotetrazoles
Alves, Jose A.C.,Johnstone, Robert A.W.
, p. 2645 - 2650 (2007/10/03)
Reaction of aryldichloroisocyanides 1a-e with sodium azide and a phase transfer agent has provided 5-chloro-1-aryl-1H-tetrazoles 2a-e in good yield. In particular, the widely-used intermediate, 5-chloro-1-phenyl-1H-tetrazole 2a, can be produced conveniently and safely in yields approaching 100%.
Photochemical Reactions of Primary Aromatic Amines with Chloromethanes in Solution. II. The Products and Mechanisms of Partial Reactions of Aniline in Tetrachloromethane, Chloroform and Dichloromethane
Boszczyk, Wojciech,Latowski, Tadeusz
, p. 1589 - 1592 (2007/10/02)
Major products of photochemical reactions of aniline in tetrachloromethane, chloroform and dichloromethane have been isolated and identified.The mechanisms of partial reactions have been discussed. - Keywords: Photochemical Reactions, Primary Aromatic Amines, Chloromethanes
On Glucosyl Thioureides. Part - IV. Synthesis of 3-Aryl-2,6-diphenylimino-4-S-tetra-O-acetyl-D-glucopyranosyl-5,6-dihydro-1,3,5-thiadiazine (Hydrochlorides)
Bedekar, I. D.,Paranjpe, M. G.
, p. 781 - 783 (2007/10/02)
Certain 3-aryl-2,6-diphenylimino-4-S-tetra-O-acetyl-D-glucopyranosyl-5,6-dihydro-1,3,5-thiadiazines (hydrochlorides) have been prepared by the interaction of phenylisocyanodichloride and 2-S-tetra-O-acetyl-D-glucopyranosyl-1-aryl-5-phenyl-2,4-isodithiobiurets.The identities of these products have been established on the basis of usual chemical transformations, ir, and polarimetry.All the attempts to isomerize these products into the related 1,3,5-triazines (IV or V) have been unfruitful.
3-Anilino-2,4-diazabicyclo[3.2.1]octenes
-
, (2008/06/13)
Novel 3-anilino-2,4-diazabicyclo[3.2.1]octenes, physiologically tolerable acid addition salts thereof and method of preparing same are described. These compounds are useful as tranquilizers, diuretics and antihypertensives.
